Grain-separator



T. C. VAUGHN.

GRAIN SEPARATOR.

,APPLICATION FILED AUG-28.1916.

Patented June 17, 1919.

ere t TIMOTHY. c. VAUG N, or monrtrs minivnsora, 'nssrs n'on 'ro VAUGHNMANUFACTURE J 'rne coMrAnY, or 1v onRIs, 1uI1vi TnsoTA,1'A conroaar oixror MINNEso'rA.

To all whom it may concern 1 1 Be it known that I, TIMOTHY G. VAUGHN, acitizenofthe United States,residing at Morris, inthe county of Stevensand State of Minnesota, have invented certain new andusefulflmprovements in Grain-Separators; and I do hereby declare thefollowing to be a full,'clear, and, exact description of the invention,such as will enable others skilled in the art to which it appertains to,make and use the same. a

My invention relates to grain separators and is in the nature of animprovement on my prior United [States Letters Patent, Number 914,997,issued tome March, 9, 19 09, and entitled Grain separator]? To t-he;above end, he invention consists of the novel devices and combinations;of devices hereinafter described and defined in; theclaims. M V a w Inthe accompanying drawings, which illustrate the invention,;like,characters indicate like parts throughout the several views.

Referring to the drawings, 1

Figure 1 is a view of thexinvention in longitudinal central section;

Fig. 2 is a fragmentaryplan view of the. separating apron and frametherefor. re: '1

moved from the machine; and

Fig. 3 is a transverse vertical section taken on the line 33 of Fig. 2.

The frame 1 of the machine supports a hopper 2, having in its bottom afeed opening with a feed roller 3 journaled therebelow. A vibratory shoe4 is suspended by links 5 from the side members of the hopper 2 and, asshown, carries upper and lower sieves 6 and 7 respectively. Materials inthe hopper 2 to be separated are evenly distributed by the feed roller 3over the full width of the screen 6. Suspended from the shoe 4:, are twopans 8 and 9. Foul seeds, dirt, etc., screened through the sieves 6 and7, are caught in the pan 8 and deposited at one side of the machine.Grain, wild oats and other materials carried over the sieves 6 and 7 arecaught in the pan 9 and precipitated thereby onto the inclined upwardlymoving surface of a separating apron 10.

The separating apron 10 runs over upper and lower rollers 11 and 12,respectively. The shaft 13 of the upper roller 11 is journaled inbearings 14 secured to the rear leg of the frame 1. A pair of sideboards 15 is located at the ends of the rollers 11 eRAIn-sErARAToR."

Specifieationof Letters Patent.

' Malaria filed aug st .28, 1916. 1 .Serial No. 117,234.

and 12, above the shafts thereof. The shaft 16 for the roller 12- isjournaled inadjustable bearings 17 secured to the lower edges of theside boards .15 and at the lower ends thereof. .Bearinglugs 18 pivotallyconnect the side boards 15 to the shaft 13 for vertical swingingmovement. t c

The inclined upwardly moving surface of the separating apronlO isdirectly supported on aldeck 19 carried by the side boards 15. It isimportant to note that the upper surfaces of the rollers 11 and 12 aretangential with the upper surface of the deck Y19 and.

that said deck extends substantially the en tire distance between thesaid rollers. By thus locating the deck 19, the separating apron 10.inpassing thereover is supported without sag, wrinkles, reases or pockets,which is highly desirable In the separation of grain. By adjusting thebearings 17, the desired tension may be placed on the separating apron10. It may be here stated that by supporting the separating surface of,

the. apron 10 on the deck, 19, said apron can be much looser on therollers than theapron in my prior patent above identified, therebymaking themachine run much easier. In

said prior patent, it was necessary to keep the separating apron verytight to take out the sag, wrinkles and creases therein.

The separating apron 10 is preferably made from canvas or other fabric,having a relatively hard smooth surface. The separating surface of theapron 10 is held at the desired inclination by a pair of cables 20 attached to the side boards 15 and arranged to be wound upon acrank-equipped windlass shaft 21 journaled in bearings 22 on theframe 1. A ratchet device or other suitable means, not shown, may beprovided for holding the Windlass shaft 21 in different adjustments. Theseparating apron 10 extends the full distance between the side boards 15and notches or apertures 23 are formed obliquely in the longitudinaledges of the deck 19 to permit the escape of grain, in case any thereofshould work between the apron and deck.

Secured to the frame 1, is a fan casing 2a in which is mounted a fan 25.The fan casing 2 1 is provided with a horizontally disposed dischargespout 26, which extends between the side boards 15 and directs the blastof air from the fan 25 onto the separating apron 10, while passing overthe deck 19. It will be noted that the blast of air is directed oversubstantially the full area of the .deck 19 and a portion thereof isLllIeCtBd between thepan .9 androller 11 to remove from the precipitatedgrain dust and other light materials, not removed by thesereens 6 and 7For the purposelof this caseguitrisnot thought necessary to illustratethe driving connections for the feedroller "3, rol'lerll and fan 25 andthe connection for vibrating the shoe l, a

The materials precipitated onto the "separating apron-10 are caughtbythe oblique blast of the air from the 'fan 25 andall Wild oats, shrunkenkernelsotgrain, sticks; straws, etc., areheld onsaid apron by" the blastof air and carriedupward over the roller11'and deposited at the rear'ofthe machine. Asvthe' surface of theapron '1-0 is relatively hard, theWild oats will not stick thereto. 'l he clea-n health-y kernels ofgrain, having the specific-Weight, rolldoWn on the-apron 10 and aredeposited onto the floor under the machine or into a; receptacle placedtoreceive the same. By changing the inclination of the separatingsurface-of the apron 10, the operator can grade the grain as heavy or aslight as he pleases. a a

As the separating surface ofthe' apron 10 is held perfectly smooth onthe deck19 by the blast of air from die 21:11 25, thereis no danger-ofthe good'grain being cau-ght'in creases or pockets in the apron andcarried upward and over the roller 11*with the material separated fromthe grain.

What I claim is .1. In. a grain separator, the jcomib'matlon with. a AframeQ-having upwardly. inclined deck 'W'ith' apertures in itslongitudinal edges, of a traveling endless separating apron arranged tomove upwardly over the deck a-nd a fan arranged to deliver a: blast insubstantially *from'end to end of the declnwtherehy the blast ofair fromthe fan gill; maintain the apron in contact with the 3. In agrainseparator,'the: combination with a frame having an upwardly inclineddeck o'f anapron passing over said deck and a fan having-a dischargespout, said spout havingan open end, inclined to correspond With thedegree of'inclination of the apron and deck, disposed closely adj acentthereto and extending substantially the length of the deck. V a

In testimony whereof I aflix my signature in; presence of two Witnesses.

TIMOTHY C. VAUGHN.

- Witnesses: I i a T. J. MANGAN, JAMES -T. LAWLER.

Gopies of this patent may beobtained for five cents each, by addressingthe fiommissioner' of *ratents,

Washingtom D. 0. V

